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b. 253

composition: (Op. 4), Sonata in C minor, Mvt IV

Long accent in A (→GE)

Short accent in FE, EE & IE

..

In A the accent mark is not very long in itself, yet due to the quite dense notation, it fills more or less half the length of the section between the chord and the bar line, which allows us to consider it a long accent. This is how it was reproduced in GE. The short accents in the remaining editions are inaccuracies by the engravers. See also the notes on bars 249-253 and 254-256.

category imprint: Graphic ambiguousness; Differences between sources

issues: Long accents , Inaccuracies in FE , EE inaccuracies ,

b. 254

composition: (Op. 4), Sonata in C minor, Mvt IV

..

In the main text we add a cautionary  to the 1st quaver. The accidental was also added in GE (→FE,EE,IE).

category imprint: Differences between sources; Editorial revisions

issues: GE revisions

b. 254-256

composition: (Op. 4), Sonata in C minor, Mvt IV

No marks in A

Long accents in GE

Short accents in GE, FE & IE

category imprint: Differences between sources

issues: Inaccuracies in FE , GE revisions , EE inaccuracies ,

b. 255

composition: (Op. 4), Sonata in C minor, Mvt IV

b-b in A, amended version

b-b in A (original version, contextual interpretation) & GE (→FE,EE,IE)

..

The version of the 2nd half of the bar in A, pianistically and harmonically questionable, is probably an example of a "correction" (the change of  to , probably performed in a hurry), which resulted in a greater mistake than the one that was supposed to be corrected – the absence of the  restoring b on the 5th quaver. The initial notation reveals that Chopin approached this place in the same way as he did with the similar situations in bar 254 (as well as 250 and 253), where the flats, although undoubtedly necessary, are only of a cautionary nature.
In GE (→FE,EE,IE) the initial text was restored, supplemented by the necessary

category imprint: Interpretations within context; Differences between sources

issues: Corrections in A , Errors resulting from corrections , GE revisions , Foreign hand additions in manuscripts , Deletions in A

b. 257-265

composition: (Op. 4), Sonata in C minor, Mvt IV

No slurs in sources

2 slurs suggested by the editors

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In the main text we suggest slurs modelled on the ones precisely marked by Chopin in the analogous phrases in bars 56-64.

category imprint: Editorial revisions